Bel Fuse Inc.

206 Van Vorst Street, Jersey City, NJ 07302

• Tel 201-432-0463 • Fax 201-432-9542 • www.belfuse.com

ISOLATED DC/DC CONVERTERS

48V Input 12V/12A, 3.3V/45A, 5V/30A, 1.2V-2.5V/50A Outputs

Input Specifications

Parameter

Min

Typ

Max

Notes

Input Voltage

36V

48V

75V

Input Current (full load)

-

-

-

-

-

-

-

-

-

-

-

-

-

-

4.5A

4.9A

4.9A

4.1A

3.0A

2.6A

2.1A

Input Current (no load)

-

120mA

180mA

Remote Off Input Current

10mA

15mA

Input Reflected Ripple Current (pk-pk)

-

10mA

20mA

Input Reflected Ripple Current (RMS)

-

3mA

8mA

Tested with simulated source impedance

of 10uH, 5Hz to 20MHz; use a

100uF/100V electrolytic capacitor with

ESR = 1 ohm max. at 200KHz at 25

°C.

I

-

0.05A

Turn-on Voltage Threshold

32V

34V

35V

Turn-off Voltage Threshold

30V

32V

34V

Output Specifications

Parameter

Min

Typ

Max

Notes

Output Voltage Set Point

11.820V

4.925V

3.250V

2.463V

1.773V

1.477V

1.182V

12V

5V

3.3V

2.5V

1.8V

1.5V

1.2V

12.180V

5.075V

3.350V

2.538V

1.827V

1.523V

1.218V

Vin=48V, Io=50% full

load

Line Regulation

-

-

-

-

±12mV

±5mV

±3mV

±3mV

±24mV

±10mV

±7mV

±6mV

Load Regulation

-

-

-

-

-

-

-

±30mV

±10mV

±7mV

±6mV

±5mV

±4mV

±3mV

±60mV

±20mV

±15mV

±13mV

±9mV

±8mV

±6mV

Regulation Over Temperature (-40

°C to +85°C)

-

-

-

-

-

-

-

±60mV

±45mV

±30mV

±25mV

±20mV

±20mV

±15mV

±100mV

±75mV

±50mV

±45mV

±40mV

±35mV

±30mV